In order to change something you need to have courage, even if it is the smallest thing. Actually let me refine, changing needs only courage if the current situation is not bad but not perfect either.I can send them by mail or bring them in person. I'll be happy to join the trial and help you. The download of the language files may take 30 seconds and the screen is blank during that time. Therefore, it is very important that you create the Vocabulary Builder page, so that user will feel that they came to the 'right' place, where the content they were looking for is presented right away.